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NEET2006ZoologyPrinciples of Inheritance and VariationActual

Test cross involves:

Options

  1. Acrossing between two genotypes with dominant trait
  2. Bcrossing between two genotypes with recessive trait
  3. Ccrossing between two F ₁ hybrids
  4. Dcrossing the F ₁ hybrid with a double recessive genotype

Correct answer

D. crossing the F ₁ hybrid with a double recessive genotype

Step-by-step solution

Test cross is a cross between an organism with unknown genotype and a recessive parent. It is used to determine whether an individual is homozygous or heterozygous for a trait.

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